Which of the following is a characteristic of false labor?

The characteristic of false labor includes decreased intensity of contractions with ambulation. In the context of false labor, contractions tend to be irregular and do not follow a consistent pattern. When a person walks or changes position, these contractions may become less intense or even temporarily stop altogether. This is in contrast to true labor, where contractions typically become more regular and increase in intensity regardless of movement.

Additionally, true labor involves progressive cervical dilation, which is not a feature of false labor. False labor may present with some discomfort, such as pain in the lower back, but it does not lead to the same physiological changes that are indicative of true labor. Therefore, the choice highlighting decreased intensity with ambulation accurately represents a key aspect of false labor, distinguishing it from true labor.